The Documentation tag group

Continuing the discussion from P.S.: Infrastructure Migration Overview:

I have set up a documentation tag group following the Documentation System structure:

When tagging a documentation topic, you can add an extra tag (only one) among:

  1. tutorial for learning-oriented material (practical / studying)
  2. howto for problem-oriented material (practical / working)
  3. explanation for understanding-oriented material (theoretical / studying)
  4. reference for information-oriented material (theoretical / working)